MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
Temperature measurement. Mother taking her unwell son's temperature by feeling his forehead with her hand. Normal body temperature is around 36.9 degrees Celsius. A temperature significantly higher than this can indicate an infection, such as influenza ('flu). The forehead of a feverish patient will often feel noticeably hotter than usual. Bed rest is a good treatment for minor infections such as flu or a cold.
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